// Copyright 2017, 2019 ETH Zürich, Thomas Schöps
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
//    this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
//    this list of conditions and the following disclaimer in the documentation
//    and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors
//    may be used to endorse or promote products derived from this software
//    without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.

#pragma once

#include <vector>

#include <libvis/eigen.h>
#include <libvis/libvis.h>
#include <libvis/sophus.h>

namespace vis {

// Holds information about a mesh and its pose as given by a MeshLab project
// file.
struct MeshLabMeshInfo {
  EIGEN_MAKE_ALIGNED_OPERATOR_NEW
  
  // Mesh label.
  string label;
  
  // Mesh filename. May be relative to the project file's path.
  string filename;
  
  // Mesh-to-global transformation.
  Mat4f global_tr_mesh;
};

typedef aligned_vector<MeshLabMeshInfo> MeshLabMeshInfoVector;


// Loads MeshLabMeshInfo from a MeshLab project file and appends them to
// the meshes vector. Only reads the first MeshGroup.
// 
// \return true if successful.
bool ReadMeshLabProject(
    const string& project_file_path,
    MeshLabMeshInfoVector* meshes);

// Saves a vector of mesh infos as a MeshLab project file.
// 
// \return true if successful.
bool WriteMeshLabProject(
    const string& project_file_path,
    const MeshLabMeshInfoVector& meshes);

}
